package com.example.forum.controller;


import com.example.forum.common.AppResult;
import com.example.forum.common.ResultCode;
import com.example.forum.config.AppConfig;
import com.example.forum.model.Message;
import com.example.forum.model.User;
import com.example.forum.services.IMessageService;
import com.example.forum.services.IUserService;
import com.example.forum.services.impl.MessageServiceImpl;
import com.example.forum.services.impl.UserServiceImpl;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import io.swagger.annotations.ApiParam;
import lombok.NonNull;
import lombok.extern.slf4j.Slf4j;
import org.springframework.web.bind.annotation.*;

import javax.annotation.Resource;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;
import java.util.List;

@Slf4j
@Api(tags = "站内信版块")
@RestController
@RequestMapping("/message")
public class MessageController {
    @Resource
    private IUserService userService;
    @Resource
    private IMessageService messageService;

    @ApiOperation("发送站内信")
    @PostMapping("/send")
    public AppResult send(HttpServletRequest request,
                          @ApiParam("接收者id")@RequestParam("receiveUserId")@NonNull Long receiveUserId,
                          @ApiParam("内容")@RequestParam("content")@NonNull String content) {

        HttpSession session = request.getSession(false);
        User user = (User) session.getAttribute(AppConfig.USER_SESSION);
        //1.判断当前用户的状态，是否被禁言
        if (user.getState() == 1) {
            return AppResult.failed(ResultCode.FAILED_USER_BANNED);
        }
        //2.不能给自己发站内信
        if (user.getId() == receiveUserId) {
            return AppResult.failed("不能给自己发站内信");
        }
        //3.校验接受者是否存在
        User receiveUser = userService.selectById(receiveUserId);
        if (receiveUser == null || receiveUser.getDeleteState() == 1) {
            return AppResult.failed("接收者状态异常");
        }
        //4.构造要更新的对象
        Message message = new Message();
        message.setPostUserId(user.getId());
        message.setReceiveUserId(receiveUserId);
        message.setContent(content);

        //5.调用service
        messageService.create(message);
        //6.返回结果
          return AppResult.success("发送成功");
    }

    @ApiOperation("获取未读数")
    @GetMapping("/getUnreadCount")
    public AppResult<Integer>  getUnreadCount(HttpServletRequest request) {
        //获取当前用户信息
        HttpSession session = request.getSession(false);
        User user = (User) session.getAttribute(AppConfig.USER_SESSION);
        //调用service
        Integer count = messageService.selectUnreadCount(user.getId()); //当前登录用户就是接收者的id
        return AppResult.success(count);

    }


    @ApiOperation("获取用户所有站内信")
    @GetMapping("/getAll")
    public AppResult<List<Message>>  getAll(HttpServletRequest request) {
        //1.获取当前登录的用户
        HttpSession session = request.getSession(false);
        User user = (User) session.getAttribute(AppConfig.USER_SESSION);
        //调用DAO
        List<Message> messages = messageService.selectByReceiveUserId(user.getId());
        //返回结果
        return AppResult.success(messages);
    }

    @ApiOperation("更新站内信的状态")
    @PostMapping("/markRead")
    public AppResult markRead(HttpServletRequest request,@ApiParam("站内信id")@RequestParam("id") Long id) {
        //1.根据id查询站内信

        Message message = messageService.selectById(id);
        //2.检查站内信是否存在
        if (message == null || message.getDeleteState() == 1) {
            return AppResult.failed(ResultCode.FAILED_MESSAGE_NOT_EXISTS);
        }
        //3.站内信是不是自己的
       HttpSession session = request.getSession(false);
        User user = (User) session.getAttribute(AppConfig.USER_SESSION);
       if (user.getId() != message.getReceiveUserId()) {
           //返回错误信息
           return AppResult.failed(ResultCode.FAILED_FORBIDDEN);
       }
       //调用service 更新站内信状态为已读
        messageService.updateStateById(id, (byte) 1);
       //返回成功结果
        return AppResult.success();

    }
    @ApiOperation("回复站内信")
    @PostMapping("/reply")
    public AppResult reply(HttpServletRequest request,
                           @ApiParam("要回复的站内信id")@RequestParam("repliedId") Long repliedId,
                           @ApiParam("要回复的内容")@RequestParam("content") String content) {

        //校验当前用户是否被静言
        HttpSession session = request.getSession(false);
        User  user = (User) session.getAttribute(AppConfig.USER_SESSION);
        if (user.getState() == 1) {
            return AppResult.failed(ResultCode.FAILED_USER_BANNED);
        }
        //检验要回复的站内信的状态
        Message existsMessage = messageService.selectById(repliedId);
        if (existsMessage == null || existsMessage.getDeleteState() == 1) {
            return AppResult.failed(ResultCode.FAILED_MESSAGE_NOT_EXISTS);
        }
        //不能给自己发站内信
        if (user.getId() == existsMessage.getPostUserId()) {
            return AppResult.failed("不能给自己回复");
        }
        //构造要回复的对象
        Message updateMessage = new Message();
        updateMessage.setPostUserId(user.getId()); //发送者
        updateMessage.setReceiveUserId(existsMessage.getPostUserId()); //接收者
        updateMessage.setContent(content);

        //调用service
        messageService.reply(repliedId,updateMessage);


        return AppResult.success();
    }
 }
